Ashcroft A Series Watertight Pressure Switch

The Ashcroft® APA and APS watertight miniature pressure switches are designed for pressure control in harsh applications. Its design allows easy integration into custom equipment or systems. This model is ideal for pressure alarm, shutdown or control where size or compatibility is a consideration.

Key Features:

  • 316SS enclosure provides uncompromising protection
  • Wide operating temperature (-40°C to 100°C)
  • Factory set or field adjustable setpoint
  • Expanded selection of pressure and electrical connections


  • Accuracy: ±2.00% full scale
  • NEMA 6 (IP67); 316 stainless steel
  • SPDT or DPDT switching models
  • Pressure ranges: vacuum to 15,000 psi

The APA and APS watertight miniature pressure switch is ideal where accurate and reliable pressure measurement are essential:

Process Market:

  • Offshore Oil Rigs
  • Chemical and Petrochemical Plants
  • Water and Wastewater Pressure Control
  • Pulp and Paper

Industrial Market:

  • Heavy Vehicle Hydraulic Braking
  • Specialized OEM Equipment

Medical and Life Sciences Market:

  • Autoclaves and Sterilizers

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